ZCM 11.1: when to use edit ini file or edit text file action

Hi,

I am trying to create a bundle in ZCM11.1 where I will edit the Chrome preferences file which is located in %appdata%\Roaming\Chrome\Default\preferences (located in the user's roaming appdata profile): for any existing user who has this file.

Do I use Action Edit ini file or Action Edit text file in this case?

Also, I want to add a line in this file which is
"download":{ "default_directory": "H:\\My Documents"}

The section "default_directory": "H:\\My Documents"} doesn't already exist.

How do I go about doing this?

Similarly, I want to edit the Firefox preferences file (located in the user's roaming appdata profile):
%appdata%\Mozilla\Firefox\profiles\default\prefs.j s
and add a line:
user_pref("browser.download.dir", "H:\\My Documents");

Thanks,
Paul